Antifriction drawer-support.



PatentedA Feb. |2,'|90|.

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y H. F. A| |a-B. l ANTlFmcTloN DRAWER SUPPORT.

(Appliminn ined my' 7, 1900.

.2 Shets-Sheet l.

(No Modal.)

No. 663,@78, Patented Feb. l2, IQUI. H. F. BAKER.

ANTIFRICTIUN DRAWER SUPPORT.

(Application led may 7, 1900.) (No Model.) 2 Sheets-Sheet 2.4

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SPEXFIGATDM@ 'forming part of Letters Patent No. 668,078, dated February 12, 1901.

pplicatiou led May '7, 1900.

To .HJ/ 111710717/ 'if mfrjf/ concern:

Be it known that l, HERBERT F. BAKER, of lonierville, in the county of Middlesex and State of Massacl1iisetts,liave in vented certain new a nd useful improvements in Antifriction l'lrawer-Supports, of which the following is a specification.

lhisinvention relates to furniture-drawers which are supported by slides located at the sides ot' the drawer and havingl a limited movement in fixed supports on the drawer casing, as in the weltlrnown Taylor slide.

The invention has for its object to provide a simple and effective antifrictional drawersupporting device comprisii'ig slides movable on guides on the casii'ig, a drawer movable independently and with the slides, and rollers interposed between the drawerand slides and between thail slii'les and the fixed guides on the casing, the arrangement being such that the movable parts-namely, the drawer an d slides-can he readily assembled and disconnected, and the friction involved in the movement of the drawer and slides may he reduced to the minimum.

rllhe invention consists in the improvements which l will now proceed to describe and claim.

Oli' the accompanying drawings, forming a part of this specification, liigure l represents a transverse section of a drawer, its casing, and drawer-supporting slides, embodying my invention, the plane of the section` being on line l. fi. of Fig. liig. 23 represents a section ou the plane of line '2 ot' Fig. l, showing the drawer closed. Fig. 3 represents a view similar to Fig. 2, showing the drawer at the outer end of its independent movement, the slides beingl at the inward extreme of their movement. Fig. #l represents a view similar to Figs. 2 and 3, showing both the drawer and the slides at the outward extreme of their movement. liig. 5 represents a perspective view of one of the slides. 6 represents a perspective view of one of the track-hars.

lhe saine reference characters indicate the same parts in all the figures.

ln the drawings, o, represents a casing, which may he a part of a desk or other structure, and h represents a drawer movable therein. To the sides of 'the casing are affixed guide-hars c c, having shoulders c at Serial No. 15,685. (No modell) their rear ends forming stops to limit the iuward movement of the slides hereinafter rcferred to, and a series 0f grooves c2 in their upper edges, said grooves being arranged in a row and each having roller-stops c3 at its ends.

d d d represent rollers fitted to roll freelyT iu the grooves ci?, and preferably retained in said grooves bv means of trunnions CZ, formed ou the sides of the rollers, and entering slots (l2, Fig. 1, formed in the sides of the grooves.

c c represent slides the lower edges of which bear upon the projecting upper portions oi the rollers d, their inner ends heilig recessed to accommodate the shoulders cl and provided with elastic cushions orvbuifers e. The upper edges of the slides e are provided with grooves e2, having roller-stops c3 at their ends, rolls heilig Iitted to roll loosely in said grooves, the form and arrangement of the grooves, stops, and rollers heilig preferably the same as that of the corresponding parts above described in connection with theguide hars c. The sides of the drawer are provided with outwardly-projccting iianges o', which rest upon the upper portions of the rollersj".

To the inner sides of the slides c are pivA oted at g gravitating dogs g,whicl1 rest upon the upper edges of the fixed guideshars c, between the inner sides of said guide-bars and the rows of grooves o2 formed therein.

71, 71, represent recesses Vformed in the inner sides of the fixed guide-hars c to receive the dogs g when the slides reach the outer ends of their movement, as shown in Fig. et, the said dogs and recesses constituting complemental stop members which prevent the with drawal of the slides from the casing, the dogs being exposed on the inner walls of the drawerreceiving space when the drawer is removed, so that the)r may he readily disengaged from the guide-bars c to permit the removal of the slides.

'i 'L' represent gravitating dogs pivoted at c" to the outer sides of the drawer-flanges b', saidL dogs being out of aliuement with the grooves in the slides and resting on the upper edges of the slides between the said grooves and the outer surfaces of the slides.

jj represent recesses formed in the outer sides of the slides, at the outer portions thereof, in position to engage the dogs i when the IOO drawer has been pulled partly out, as indicated in Fig. 3, the dogs vl and recessesg constituting complement-al coupling or connecting members,whereby the drawer is engaged with the slides by the downward-swinging movement of the dogs during the outward movement of the drawer, so that the slides are caused to move outwardly with the drawer until the outward movement of the slides and drawer is arrested by the engagement of the dogs g with the notches h, as shown in Fig. 4c. When the drawer is moved inwardly, the dogs are swung upwardly.

The dogs t' are arranged so that when the drawer is pulled'out, as shown in Fig. 4E, the dogs are exposed on the outer sides of the drawer and can be readily disengaged from the recessesj to permit the removal of the drawer from the slides and casing, it being necessary only to raise the dogs out of engagement with the recessesj to accomplish this result.

In assembling the parts above described the slides are first inserted into position on the guide-bars c, and the drawer is then inserted into position on the slides, the dogs t' yielding while they are being pushed over the outer ends of Ithe slides. In separating the parts the drawer is pulled out, then disengaged from the slides by lifting the dogs, and then entirely withdrawn, thus exposing the slides, which are now readily accessible at the sides of the drawer-receiving space, so that they can be readily removed.

By locating each set of rollers in a row of grooves having rollerstops at their ends, there being one groove for each roller, I am enabled to keep the rollers properly distributed to support the weight upon them to the best advantage, the length of the grooves being proportioned to the diameter of the rollers and to the extent of movement of the slides and drawer, so that the rollers will travel substantially the length of movement of the parts supported by them in passing from end to end of their containing-groove.

The outer ends of the slides e are provided with rubber buffers 7c, against which the ends of the front piece of the drawer abut when the drawer is pushed in, as shown in Fig. 2.'

The rollers f and d may be inserted in the grooves of the slides and guide-bars by making the said grooves continuous from end to end of the said slides and bars, then inserting the rollers in the outer ends of the grooves and moving them along to the desired points, and then inserting in the grooves the pieces which form the stops e3 and c3, said pieces being secured by glue or otherwise.

I claiml. In a drawer-support, the combination of a drawer-casing, track-bars affixed thereto at opposite sides of the drawer-space, slides movable longitudinally over said track-bars, a drawer provided with flanges projecting over said slides, the upperedges of the track-bars and the upper edges of the slides being provided with grooves, rollers movable in said grooves, the rollers in the grooves of the trackbars supporting the slides, while the yrollers in the slides support the flanges of the drawer, gravitating locking-dogs on the drawer and notches in the slides, whereby the drawer is engaged with the slides when the drawer is pulled partially out, and gravitating lockingdogs on the slides and notches in the guides, whereby the outward movement of the slides and drawer is limited, the last-mentioned locking-dogs being on the inner sides of the slides, so that they are accessible from the drawer-receiving space when the drawer is removed.

2. In a drawer-support, the combination of a d rawer-casing, track-bars affixed thereto at opposite sides of the d rawer-space, slides movable longitudinally over said track-bars, a drawer provided with flanges projecting over the slides, the upper edge of each track-bar and the upper edge of each slide being provided with a row of roller-receiving grooves and roller-stops between the grooves of each row, each groove having a roller which is shiftable between the ends of the groove, the inner sides of the track-bars and the outer sides of the slides being provided with dogengaging recesses, while the inner sides of the slides and theouter sides of the drawerflanges are provided with gravitating dogs, the dogs on the anges being arranged to drop into the notches in the slides when the drawer is pulled partly out, While the dogs on the slides are adapted to drop into the notches in the track-hars to limit the outward movement of the slides and drawer.

In testimony whereof I have affixed my signature in presence of two witnesses.

HERBERT F. BAKER. Witnesses:

R. L. BAKER, C. F. BROWN.

IOO 

